75681026780 has 12 divisors (see below), whose sum is σ = 158930156280. Its totient is φ = 30272410704.

The previous prime is 75681026779. The next prime is 75681026789. The reversal of 75681026780 is 8762018657.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75681026789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892025650 + ... + 1892025689.

It is an arithmetic number, because the mean of its divisors is an integer number (13244179690).

Almost surely, 2^75681026780 is an apocalyptic number.

It is an amenable number.

75681026780 is an abundant number, since it is smaller than the sum of its proper divisors (83249129500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75681026780 is a wasteful number, since it uses less digits than its factorization.

75681026780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784051348 (or 3784051346 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 75681026780 in words is "seventy-five billion, six hundred eighty-one million, twenty-six thousand, seven hundred eighty".